In House M.D., Dr. Gregory House frequently plays the piano.
House’s musical ability is part of his characterization rather than a medical detail. He is shown playing piano at home and occasionally using music as a way to think, relax, or isolate himself. The instrument supports the series’ portrait of him as highly intelligent, technically skilled, and emotionally guarded.
House also plays guitar, and the show uses both instruments in different contexts. This sometimes leads viewers to identify guitar as his only or primary instrument, but piano is the clearest recurring answer when the question asks what he frequently plays. Hugh Laurie is himself a musician and performed piano and guitar outside the series, including with the charity-oriented music group Band from TV. The show’s use of music therefore overlaps with Laurie’s real-life abilities while remaining part of House’s fictional identity.